VALIDITY AND RELIABILITY OF EXERCISE MEASURES DURING PREGNANCY

孕期运动措施的有效性和可靠性

• 批准号: 7951318
• 负责人: Danielle Symons Downs
• 金额: $ 0.05万
• 依托单位: PENNSYLVANIA STATE UNIV HERSHEY MED CTR
• 依托单位国家: 美国
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-04-01 至 2010-03-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7951318
• 关键词: Birth; Clinical Research; Computer Retrieval of Information on Scientific Projects Database; Exercise; Funding; Grant; Health; Healthy People 2010; Institution; Low Birth Weight Infant; Measures; Monitor; Outcome; Patient Self-Report; Physical activity; Pregnancy; Pregnancy Outcome; Premature Birth; Prevalence; Public Health; Research; Research Personnel; Resources; Risk; Role; Source; United States; United States National Center for Health Statistics; United States National Institutes of Health; Validity and Reliability; base; cost; hatching; instrument; monitoring device

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. A public health concern exists regarding the prevalence of adverse pregnancy outcomes in the United States. For example, approximately 10% of births are of low weight and 11% of birth outcomes end with a preterm gestational period of less than 37 weeks (i.e., preterm delivery; NCHS, 1998). Because low birth weight and preterm birth are associated with negative health consequences, reducing their prevalence is part of the Healthy People 2010 objectives. Research, however, examining the effect of physical activity on birth outcomes is equivocal (Leiferman & Evenson, 2003). One potential reason for the discrepant results is the lack of consistency in physical activity assessments. The research examining physical activity and adverse pregnancy outcomes is limited, and the existing studies have relied on mostly nonstandardized self-report measures. Few, if any, studies have examined this relationship with objective monitoring devices. Examining whether physical activity may reduce the likelihood of adverse pregnancy outcomes is important because it could provide a cost-effective and modifiable way to reduce this risk (Leiferman & Evenson, 2003). However, before research can effectively examine the role of physical activity in reducing poor birth outcomes - more research is warranted examining the validity and reliability of physical activity measures during pregnancy. Specific Aim #1. We will examine the convergent validity (correlation between measures of the same construct) of objective monitoring (accelerometer, pedometer) and self-report instruments assessed during pregnancy. Based on previous research (Freedson & Miller, 2000; Stein et al., 2003) it is hypothesized that the accelerometer will generate the highest validity coefficients compared to the other exercise measures. Specific Aim #2. We will examine the association between the physical activity assessments taken during pregnancy and low birth weight and preterm delivery. Based on the conclusions of previous researchers (e.g., Campbell & Mottola, 2001; Hatch et al., 1998), it is hypothesized that physical activity will be associated with low birth weight and preterm delivery.

该子项目是利用该技术的众多研究子项目之一 资源由 NIH/NCRR 资助的中心拨款提供。子项目和 研究者 (PI) 可能已从 NIH 的另一个来源获得主要资金， 因此可以在其他 CRISP 条目中表示。列出的机构是 对于中心来说，它不一定是研究者的机构。 在美国，不良妊娠结局的普遍存在是一个公共卫生问题。例如，大约 10% 的出生体重较低，11% 的出生结果以妊娠期少于 37 周的早产结束（即早产；NCHS，1998）。由于低出生体重和早产会对健康造成负面影响，因此降低其患病率是“2010 年健康人民”目标的一部分。 然而，关于体力活动对出生结果影响的研究却是模棱两可的（Leiferman & Evenson，2003）。结果不一致的一个潜在原因是体力活动评估缺乏一致性。检查体力活动和不良妊娠结局的研究有限，现有研究大多依赖于非标准化的自我报告措施。很少有研究（如果有的话）检验这种与客观监测设备的关系。检查体力活动是否可以降低不良妊娠结局的可能性非常重要，因为它可以提供一种经济有效且可修改的方法来降低这种风险（Leiferman & Evenson，2003）。然而，在研究能够有效地检验身体活动在减少不良出生结果方面的作用之前，需要进行更多的研究来检验怀孕期间身体活动措施的有效性和可靠性。 具体目标#1。我们将检查怀孕期间评估的客观监测（加速度计、计步器）和自我报告仪器的收敛效度（相同结构的测量之间的相关性）。根据之前的研究（Freedson & Miller，2000；Stein et al.，2003），假设与其他运动测量相比，加速计将产生最高的有效性系数。 具体目标#2。我们将研究怀孕期间进行的体力活动评估与低出生体重和早产之间的关联。根据先前研究人员的结论（例如，Campbell & Mottola，2001；Hatch 等，1998），推测体力活动与低出生体重和早产有关。